KR101091622B1 - Method and apparatus of a vehicle transmission for communicating lever position - Google Patents

Abstract

A lever position signal generation unit installed in a shift lever unit having a plurality of lever positions is a combination of a plurality of on / off signals based on a set signal table. And a lever position signal, wherein the transmission control unit is configured to receive a lever from a combination of the plurality of on / off signals included in the signal receiving step of receiving the generated lever position signal and the received lever position signal. Performing a lever position calculation step of calculating a position, wherein the set signal table is defined by the combination of the plurality of on / off signals not only in relation to the set normal position, but also to an intermediate position between adjacent normal positions; It provides a lever position communication method of a vehicle transmission characterized in that the.

Lever position, transmission, automatic manual transmission, on / off signal

Description

Method and apparatus for lever position communication of transmission for automobiles {METHOD AND APPARATUS OF A VEHICLE TRANSMISSION FOR COMMUNICATING LEVER POSITION}

The present invention relates to a method and apparatus for lever position communication of a transmission for a vehicle, and more particularly, to communicate a lever position signal with a shift lever unit when the transmission control unit detects a lever position of a shift lever operated by a driver. It relates to a method and an apparatus.

As is well known, an automobile transmission is classified into an automatic transmission automatically shifted by a hydraulic mechanism to an appropriate shift stage according to a vehicle driving state, and a manual transmission manually shifted by a driver.

In general, the shift lever of the automatic transmission has lever positions for general modes such as P, R, N, D, and low speed modes such as 3, 2, and 1, and according to the lever position where the driver positions the shift lever. To control the operation of the transmission.

Recently, in the automatic transmission, a manual shift mode is provided in which a driver instructs upshift and downshift and shift accordingly, and the shift lever unit for implementing such a shift mode has an upshift command. A lever position (usually referred to as a "+" position) and a lever position (commonly referred to as a "-" position) for receiving a downshift command may be provided.

Also, in recent years, even in the case of a manual transmission, the shape of the transmission lever unit is formed similarly to the transmission lever unit for the automatic transmission, and according to the driving state in the transmission control unit (hereinafter referred to as "TCU"). The automatic shifting function is being implemented. The transmission in which this function is implemented is called an automated shift gear or an automated manual transmission. In such an automatic manual transmission, the TCU drives a motor to drive the shifting mechanism of the manual transmission to an appropriate shift stage.

In either case of an automatic transmission or an automatic manual transmission, the TCU needs to detect the current lever position of the shift lever. The shift lever detects which position is positioned among various lever positions such as "P", "R", "N", "D", "+", "-", and "sports". This is because the shift control appropriate to the position of the lever position is to be performed.

However, according to the prior art, whether the shift lever is in a position related to a sport mode such as "+", "-", "sports", etc. is detected by a switch mounted on the shift lever unit, and "P", "R" , "N", "D" or the like position is detected by the rotary position of the inhibitor switch of the automatic transmission. Therefore, in this case, since the TCU controlling the transmission must be connected to each of the inhibitor switch and the shift lever unit, the wiring system of the vehicle becomes very complicated.

In an automatic manual transmission, sensors are arranged as many as the number of lever positions formed in the shift lever unit, and wirings are connected from each sensor to the TCU. In this case, the number of wirings is disadvantageous.

In addition, when the wiring is connected to the transmission control unit for each lever position, when any one of the wirings is short-circuited, it is not possible to know whether the lever is moving between positions or an error has occurred in the wiring. Is hard.

Therefore, in recent years, the shift lever unit in which the shift lever operates and the shift control unit controlling the transmission communicates each other with a predetermined number of signals instead of a 1: 1 wiring connection, whereby the position information of the shift lever is changed by a combination of communication signals. Exchange methods are being researched and developed.

The object of the present invention is to detect the lever position even when reducing the number of wires for detecting the lever position of the shift lever unit, to detect the lever position even in the case of a wiring error, and to communicate the lever position signal. The present invention provides a method and apparatus for lever position communication of a transmission for a vehicle that can control a stable transmission even when an error occurs.

In order to achieve the above object, a lever position communication apparatus for a vehicle transmission according to the present invention is a combination of a plurality of on / off signals based on a signal table in which a shift lever unit in which a plurality of lever positions are formed is provided. A lever position signal generating unit for generating a lever position signal related to the lever position signal generating unit; and a transmission control unit for controlling the transmission based on the lever position signal generated by the lever position signal generating unit, wherein the transmission control unit is described below. Among the processes of the lever position communication method of the present invention, the processes to be performed in the transmission control unit are performed.

In the lever position communication method of a vehicle transmission according to the present invention, a lever position signal generation unit is a combination of a plurality of on-off signals based on a set signal table. A lever position signal is generated with respect to the lever position, and the transmission control unit is configured to receive a signal receiving step of receiving the generated lever position signal and the plurality of on / off signals included in the received lever position signal. Performing a lever position calculating step of calculating a lever position from a combination, wherein the set signal table is configured not only for a normal position but also for intermediate positions between adjacent normal positions; The combination is defined.

The signal table may be expressed as a combination of a smaller number of the same on / off signal and one other on / off signal with respect to the set normal position.

The signal table expresses a lever position as a combination of four on / off signals, and with respect to the intermediate position, the signal table may be represented as a combination of two identical signals and two signals opposite thereto.

With respect to the intermediate position, the same on / off signal of the on / off signals of the two normal positions adjacent to each other is defined as the same signal, and with respect to the different signals at least one of each of the two normal positions are the same It can be defined to be defined as a signal.

The on / off signal combination corresponding to the intermediate position may be defined such that only one signal is different from the on / off signal combination corresponding to two normal positions adjacent to the intermediate position.

The lever position calculating step may include: determining whether the received lever position signal is abnormal; controlling the transmission with a set shift stage when the received lever position signal is abnormal; and after controlling the transmission with the set shift stage, The method may include controlling the transmission by performing an emergency control mode in which a shift is possible between a plurality of shift stages.

Whether the received lever position signal is abnormal is (1) a first predetermined rotation in which the received lever position signal corresponds to a combination of on / off signals corresponding to the intermediate position and the engine speed exceeds the idle speed (2) The received lever position signal corresponds to a combination of undefined on / off signals, and the engine speed is greater than or equal to a second predetermined rotation speed less than an idle speed. (3) In the received lever position signal. When the corresponding lever position and the lever position corresponding to the lever position signal received immediately before are not adjacent to each other, and the normal lever position signal is satisfied that a plurality of times have been recently received. It may be determined that the lever position signal is abnormal.

The set shift stage may be selected as a shift stage capable of shifting to the reverse stage by controlling only shift control actuators among all shift shift speeds of the transmission.

The set emergency control mode may include: receiving a new lever position signal; determining whether the new lever position signal is a reverse stage signal; and when the new lever position signal is a reverse stage signal, the transmission engages the reverse stage. And controlling the transmission so as to control the transmission.

The set emergency control mode may include: detecting a vehicle driving state when the new lever position signal is not a reverse stage signal; and may be configured to be shifted by control of the shift control actuators only from the set shift stage. The method may further include controlling the transmission to a shift stage closest to a target shift stage calculated according to the driving state of the vehicle among the available available shift-speeds.

According to the embodiment of the present invention, since the wiring for communicating the lever position needs to be provided only between the lever position signal generating unit and the TCU installed in the lever unit, the wiring of the vehicle can be simplified.

By rationally setting the communication protocol related to the lever position, communication can be performed efficiently, and the vehicle can be normally driven even when there is a defect in wiring such as one disconnection. In addition, by reasonably defining the signal regarding the intermediate position, the reliability of confirming the intermediate position is improved.

In addition, it is possible to detect not only the normal lever position but also the intermediate position therebetween, thereby allowing the user to enter the emergency control mode, to facilitate the driver's convenience.

In addition, in the emergency control mode, instead of maintaining only one shift stage, shifting is possible among a plurality of shift stages, for the convenience of the driver.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram of a shift system to which a lever position communication device of a vehicle transmission according to an embodiment of the present invention is applied.

As shown in FIG. 1, a transmission system to which a lever position communication device of a vehicle transmission is applied to an embodiment of the present invention includes an automobile transmission 180 (for example, an automatic transmission in the present embodiment) of an automobile. A sensor unit 150 for detecting a driving state, a shift lever unit 170 in which a plurality of lever positions are formed, and a shift lever position signal are communicated with the shift lever unit 170 to control the transmission 180 based thereon. Transmission control unit 160 (hereinafter referred to as "TCU").

The sensor unit 150 includes, for example, a vehicle speed sensor 110 for detecting a vehicle speed, a throttle opening degree sensor 120 for detecting an throttle opening amount, and an engine speed detector 130 for detecting an engine speed. I can do it.

The transmission 180 is, for example, an automatic transmission, and may include a plurality of solenoid valves 185 for controlling a hydraulic flow therein to implement a shift, and the TCU 160 may include the solenoid valve ( It is possible to control the transmission 180 by controlling 185. However, the protection scope of the present invention should not be understood to be limited thereto. As another example, the transmission 180 may be an automated manual transmission, and may include other actuators for controlling the operation of the automated manual transmission instead of the plurality of solenoid valves 185.

2 is a block diagram of a lever position communication apparatus according to an embodiment of the present invention. 3 is a block diagram showing another form of the shift lever unit 170 'in the lever position communication apparatus of the vehicle transmission according to the embodiment of the present invention.

As shown in FIG. 2, the lever position communication apparatus according to the embodiment of the present invention is provided in the shift lever unit 170 and the shift lever unit 170, and is configured to be turned on / off based on a set signal table. And a lever position signal generation unit 174 for generating a lever position signal as a combination of the signals, and the TCU 160.

The TCU 160 receives the lever position signal generated by the lever position signal generation unit 174 and restores the lever position based thereon. The TCU 160 controls the transmission 170 based on the restored lever position.

The number and arrangement of lever positions formed on the shift lever unit 170 may be arbitrarily set by those skilled in the art. For example, FIG. 1 illustrates a shift lever unit 170 in which five lever positions of “P”, “R”, “N”, “D”, “sports”, “+”, and “−” are formed. . As another example, of these possible lever positions, only "P", "R", "N", and "D" are communicated, and the lever operation in the sport mode may be done in other ways. As another example, as shown in FIG. 3, a series of lever positions of “P”, “R”, “N”, “D”, “3”, “2”, and “1” may be defined as a single gate 172. It can be arranged on ').

Detecting the actual lever position line of the lever in the lever position signal generation unit 174 can be implemented by various methods. For example, a sensor (not shown) is provided on the gate 172 where the lever moves to generate a different voltage depending on the operating position of the lever, and the lever position signal generation unit 174 recognizes the lever position according to the sensor value. It is possible to. As another example, an on / off switch may be provided for each lever position where the lever is specified so that the lever position signal generation unit 174 detects which lever position the lever is located on the basis of signals from these switches. .

The lever position signal generation unit 174 generates a lever position signal corresponding to the detected lever position based on the set signal table.

The lever position signal generation unit 174 may be a microprocessor programmed in software or hardware to generate a lever position signal based on the set signal table.

In an embodiment of the present invention, the set signal table may be set as shown in Table 1 below.

Table 1 shows an example of a signal table corresponding to an example in which a series of lever positions of "P", "R", "N", "D", "3", "2", and "1" is arranged. Although described, it should not be understood that the protection scope of the present invention is limited thereto. This describes an example of the lever position signals communicated about only seven lever positions. On the other hand, when communicating the lever position signals with respect to lever positions "P", "R", "N", and "D" only, the signal definitions related to "3", "2" and "1" are ignored. Only other signal definitions may be used. Also, instead of lever positions of "P", "R", "N", "D", "3", "2" and "1", other physical meanings of "sports", "+" and "-" It will be apparent to those skilled in the art that the same signal table can be used with respect to the lever position.

As described in Table 1 as an example, according to the embodiment of the present invention, the set signal table has a set normal position (i.e., "P", "R", "N" in this embodiment). "," D "," 3 "," 2 "," 1 "; hereafter abbreviated as" PRND321 "), as well as between adjacent normal positions (between" P "and" R ", R" and "N" ", Between" N "and" D ", between" D "and" 3 ", between" 3 "and" 2 ", between" 2 "and" 1 ", respectively PR, RN, ND, D-3, The plurality of on / off signal combinations are also defined with respect to the intermediate position of 3-2 and 2-1.

That is, even when the shift lever is positioned between the normal positions (PR, RN, ND, D-3, 3-2, 2-1) due to mechanical failure or immature operation, the lever position sensor generating unit ( 174 generates a corresponding lever position signal and transmits it to the TCU 160. Therefore, the TCU 160 detects the shift lever not only when the shift lever is in the normal position PRND321 but also when the shift lever is positioned in the midway positions PR, RN, ND, D-3, 3-2, and 2-1 of adjacent positions. You can do it.

As such, when the shift lever is not in the normal position PRND321, the transmission may be physically inadequate to shift. For example, in the case of an automatic transmission, a manual valve is connected to an inhibitor switch, and the hydraulic circuit in the automatic transmission is converted according to the position of the manual valve. Is not formed properly, which may cause shifting problems.

In the exemplary embodiment of the present invention, the TCU 160 may determine that the shift lever is positioned at the intermediate positions PR, RN, ND, D-3, 3-2, and 2-1 in this way, and take action thereon. This is described in more detail later.

In Table 1, "0" and "1" refer to "on" or "off", and the correspondence can be arbitrarily defined by those skilled in the art.

In Table 1, the signal table represents a lever position as a combination of four on / off signals, and with respect to the set normal position PRND321, the same three signals among the four on / off signals and the other one are different from each other. It is expressed as a combination of signals.

That is, each lever position of the normal position PRND321 is distinguished by a combination of three "1" signals and one "0" signal or a combination of three "0" signals and one "1" signal.

In this way, the lever position signal corresponding to any two normal positions includes at least two different on / off signals. Accordingly, even when any one of the on / off signals is missing (for example, when the signal line is disconnected), the lever position signal can be stably communicated with the lever position signal generation unit 174.

In Table 1, the intermediate positions (P-R, R-N, N-D, D-3, 3-2, 2-1) are expressed as a combination of two identical signals and two signals opposite thereto. That is, each intermediate position (P-R, R-N, N-D, D-3, 3-2, 2-1) is represented by two "0" signals and two "1" signals.

More specifically, with respect to the intermediate position (PR, RN, ND, D-3, 3-2, 2-1), the two normal positions ("P" and "R", R "and" N "adjacent to it) For the same ON / OFF signal among the ON / OFF signals of "N" and "D", "D" and "3", "3" and "2", "2" and "1"). The signal is defined, and in relation to a different signal, each of the two normal positions and at least one is defined to be defined as the same signal.

For example, since the lever position signal of the normal position P is 1011 and the lever position signal of the normal position R is 0001, the lever position signal of the intermediate position P-R between them is defined as 0011. That is, the lever position signal of the middle position (PR) is determined to be the same as the two normal position signals at the second and fourth positions where the two normal positions are equal to each other, zero at the third position with the normal position (R) at the first position. It is set to 1 along the value of the normal position (P). Therefore, in summary, the lever position signal of the intermediate position (P-R) is defined as 0011.

According to this combination, the on / off signal combination corresponding to the intermediate position PRND321 may have two normal positions adjacent to the intermediate positions PR, RN, ND, D-3, 3-2, and 2-1. ON corresponding to P "and" R ", R" and "N", "N" and "D", "D" and "3", "3" and "2", "2" and "1") Only one signal is defined for the on / off signal combination.

The TCU 160 may be implemented as one or more microprocessors operated by a set program, and the set program may be performed by the TCU 160 in each process of the lever position communication method according to an embodiment of the present invention described below. You can do it with a series of commands to perform them.

Hereinafter, the lever position communication method of the vehicle transmission of the present invention using the signal table defined as above will be described in detail.

4 is a flowchart illustrating a lever position communication method of a vehicle transmission according to an embodiment of the present invention.

First, the lever position signal generation unit 174 generates a lever position signal based on the signal table (Table 1) (S410), and thus the TCU 160 receives the generated lever position signal (S420).

Upon receiving the lever position signal, the TCU 160 determines whether the received lever position signal is an abnormal signal (S430), and when the received lever position signal is normal, the lever position signal is based on the signal table (Table 1). To calculate (S440).

When the lever position signal received in the determination (S430) is an abnormal signal, the TCU 160 controls the transmission to the set shift stage (S450).

Then, the TCU 160 controls the transmission by performing an emergency control mode in which a shift is possible between a plurality of shift stages (S460).

It is determined whether the received lever position signal is abnormal (S430) under the following conditions.

When the received lever position signal corresponds to a combination of on / off signals corresponding to the intermediate position and the engine speed is greater than or equal to a first preset speed exceeding the idle speed, the received lever position signal is not previously defined. When the engine rotational speed corresponds to a combination of the on / off signal and the engine rotational speed is greater than or equal to the second preset rotational speed, and the lever position corresponding to the received lever position signal and the lever position corresponding to the immediately received lever position signal are adjacent to each other. In addition, it is determined that the received lever position signal is abnormal when the normal lever position signal has been received a plurality of times or more recently.

If such an abnormality determination is to enter the emergency control mode to be described later, the criteria for such an abnormality determination is defined as a state that it is determined that the need to enter the emergency control mode is large.

First, a normal lever position signal may not be generated when the wiring is disconnected from the beginning in an automobile assembly process. In this case, since it is not necessary to enter the emergency control mode and operate the vehicle, the abnormality determination of the received lever position signal for judging the emergency control mode is performed when the normal lever position signal has been received more than a plurality of times. Only to determine that there is a possibility of abnormalities.

In addition, since the main problem is located in the intermediate position during the operation of the lever, it is mainly when the vehicle is being driven. In the region where the rotation speed is similar to or lower than the idle rotation speed, abnormality due to the intermediate position is not determined.

In addition, since the necessity of the emergency control mode is not large when the engine is turned off or started, it is determined whether the engine speed is greater than or equal to the second set speed which is less than the idle speed, and the received lever position is only applicable thereto. If the signal corresponds to a combination of on / off signals that are not predefined, it is determined that the received lever position signal is abnormal.

Finally, the lever position corresponding to the received lever position signal and the lever position corresponding to the immediately received lever position signal are not adjacent to each other, for example, the mechanical configuration of the lever unit such as P → N → R. According to the present invention, a lever position that must pass through is not detected, and whether or not such a situation has occurred is considered in abnormality.

Exemplary criteria for determining whether abnormality has been described above in detail, but the protection scope of the present invention should not be understood to be limited thereto. These criteria can be changed by other variables such as the designer's choice.

As described above, when the lever position signal received in the determination (S430) is an abnormal signal, the TCU 160 controls the transmission to the set shift stage (S450).

The set shift stage is selected from among shift stages capable of shifting to the reverse stage by controlling only the shift control actuator 185 among all shift shift-speeds of the transmission.

As will be apparent to those skilled in the art, the powertrain of a particular transmission (eg an automatic transmission) is operated by a hydraulic control system suitable for this to implement a plurality of transmission stages. Typically, the reverse stage R is selected by the operation of the shift lever, but among the forward shift stages, there are shift stages that can implement the reverse stage therefrom even by the operation of the shift control actuator alone. The set shift stage is selected from these shift stages. By this configuration, even in the emergency control mode described below, it is possible to smoothly and stably control the vehicle operation such as reversing.

5 is a flowchart illustrating an emergency control mode performed when an abnormal code is communicated in a lever position communication method of a vehicle transmission according to an exemplary embodiment of the present invention.

Hereinafter, the emergency control mode (S460) according to the embodiment of the present invention will be described in detail with reference to FIG.

In the emergency control mode, the lever position signal generation unit 174 generates a new lever position signal (S510), and the TCU 160 receives the new lever position signal (S520), and the new lever position signal is reversed. It is determined whether the signal (S530).

When the new lever position signal is a reverse signal, the TCU 160 controls the transmission 180 such that the transmission engages the reverse speed (S540). It will be apparent to those skilled in the art that such control can be implemented by the TCU 160 by controlling the solenoid valve 185 of the transmission 180.

If the new lever position signal is not the reverse signal, the TCU 160 detects the vehicle driving state (S550). The vehicle driving state detection S550 is based on the detection values of the sensor unit 150 described above, which will be apparent to those skilled in the art.

The TCU 160 detecting the vehicle driving state corresponds to the vehicle driving state among preset available shift speeds that may be shifted from the set shift stage by the control of only the shift control actuators. The transmission 180 is controlled to the shift stage closest to the target shift stage calculated by the step (S560).

That is, it will be apparent to those skilled in the art that the target shift stage may be calculated according to a conventional method based on the vehicle driving state. If the target shift stage calculated in this way can be implemented from the set shift stage by the control of the solenoid valve of the transmission 180, the target shift stage is realized, and otherwise, the target shift stage is closest to the target shift stage. Shifting to the gearshift stage. By shifting in this way, although in the emergency control mode, the vehicle can be driven in a state close to the most normal state, thereby facilitating the driver's convenience.

As mentioned above, although the preferred embodiment regarding the method and apparatus for lever position communication of the vehicle transmission of the present invention has been described, the present invention is not limited to the above embodiment, and from the embodiment of the present invention, it is common in the art. It includes all changes to the extent that they are readily changed by the knowledgeable person and considered equivalent.

1 is a configuration diagram of a shift system to which a lever position communication device of a vehicle transmission according to an embodiment of the present invention is applied.

2 is a configuration diagram of a lever position communication device for a vehicle transmission according to an embodiment of the present invention.

3 is a block diagram showing another form of the shift lever unit in the lever position communication apparatus of the vehicle transmission according to the embodiment of the present invention.

4 is a flowchart illustrating a lever position communication method of a vehicle transmission according to an embodiment of the present invention.

5 is a flowchart illustrating an emergency control mode performed when an abnormal code is communicated in a lever position communication method of a vehicle transmission according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: vehicle speed sensor

120: Throttle Opening Sensor

130: engine speed sensor

150: sensor unit

160: transmission control unit

170, 170 ': Shift lever unit

172, 172 ': lever shift gate

174, 174 ': lever position signal generation unit

180: automatic transmission

185: solenoid valve

Claims (20)

delete The lever position signal generation unit generates a lever position signal for a plurality of lever positions as a combination of a plurality of on / off signals based on a set signal table. and, Transmission control unit, A signal receiving step of receiving the generated lever position signal; Performing a lever position calculating step of calculating a lever position from a combination of the plurality of on / off signals included in the received lever position signal; The plurality of on / off signal combinations are defined in the set signal table not only in relation to the set normal position but also to an intermediate position between adjacent normal positions; The signal table is expressed as a combination of a smaller number of the same on / off signal and one other on / off signal with respect to the set normal position; The on / off signal combination corresponding to the intermediate position is defined such that only one signal differs from the on / off signal combination corresponding to two normal positions adjacent to the intermediate position. Lever position communication method. 3. The method of claim 2, The signal table expresses a lever position as a combination of four on / off signals, and with respect to the intermediate position, the signal table is represented as a combination of two signals that are identical and two signals opposite thereto. Lever position communication method. 4. The method of claim 3, With respect to the intermediate position, the same on / off signal of the on / off signals of the two normal positions adjacent to each other is defined as the same signal, and with respect to the different signals at least one of each of the two normal positions are the same Lever position communication method of a vehicle transmission, characterized in that defined to be defined as a signal. delete 3. The method of claim 2, The lever position calculation step, Determining whether the received lever position signal is abnormal; Controlling the transmission to a set shift stage when the received lever position signal is abnormal; Controlling the transmission by controlling the transmission with the set shift stage and then performing a set emergency control mode capable of shifting between a plurality of shift stages; Lever position communication method of a vehicle transmission comprising a. In claim 6, Whether the received lever position signal is abnormal, When the received lever position signal corresponds to a combination of on / off signals corresponding to the intermediate position and the engine speed is greater than or equal to the first preset speed exceeding the idle speed When the received lever position signal corresponds to a combination of an on / off signal that is not defined in advance and the engine speed is greater than or equal to a second preset speed that is less than the idle speed It corresponds to any one of the case that the lever position corresponding to the received lever position signal and the lever position corresponding to the immediately received lever position signal are not adjacent to each other. And determining that the received lever position signal is abnormal when it is satisfied that the normal lever position signal has been recently received more than a plurality of times. In claim 6, The set shift stage, Lever position communication method of the vehicle transmission, characterized in that selected from among the entire shift stage (entire shift-speeds), the shift stage that can be shifted to the reverse stage by the control of the shift control actuators only. In claim 8, The emergency control mode is set, Receiving a new lever position signal Determining whether the new lever position signal is a reverse signal; Controlling the transmission such that the transmission engages the reverse stage when the new lever position signal is a reverse stage signal. Lever position communication method of a transmission for a vehicle comprising a. The method of claim 9, The emergency control mode is set, Detecting the driving state of the vehicle when the new lever position signal is not a reverse signal; From the set shift stage to the shift stage closest to a target shift stage calculated in correspondence with the vehicle driving state, among preset available shift speeds that can be shifted by control of only the shift control actuators. Controlling the transmission Lever position communication method of a vehicle transmission further comprising a. delete Shift lever unit with a plurality of lever positions A lever position signal generating unit for generating a lever position signal relating to the plurality of lever positions as a combination of a plurality of on / off signals based on the set signal table; And a transmission control unit which receives the lever position signal generated by the lever position signal generation unit and controls the transmission based on the lever position signal. The transmission control unit performs a lever position calculation step of calculating a lever position from a combination of the plurality of on / off signals included in the received lever position signal, The plurality of on / off signal combinations are defined in the set signal table not only in relation to the set normal position but also to an intermediate position between adjacent normal positions; The signal table is expressed as a combination of a smaller number of the same on / off signal and one other on / off signal with respect to the set normal position; The on / off signal combination corresponding to the intermediate position is defined such that only one signal differs from the on / off signal combination corresponding to two normal positions adjacent to the intermediate position. Lever Position Communication Device. The method of claim 12, The signal table expresses a lever position as a combination of four on / off signals, but with respect to the intermediate position, a lever of a vehicle transmission, characterized in that a combination of two signals that are identical and two signals opposite thereto. Position communication device. The method of claim 13, With respect to the intermediate position, the same on / off signal of the on / off signals of the two normal positions adjacent to each other is defined as the same signal, and with respect to the different signals at least one of each of the two normal positions are the same Lever position communication device of a vehicle transmission, characterized in that defined to be defined as a signal. delete The method of claim 12, The lever position calculation step, Determining whether the received lever position signal is abnormal; Controlling the transmission to a set shift stage when the received lever position signal is abnormal; Controlling the transmission by controlling the transmission with the set shift stage and then performing a set emergency control mode capable of shifting between a plurality of shift stages; Lever position communication device for a vehicle transmission comprising a. The method of claim 16, Whether the received lever position signal is abnormal, When the received lever position signal corresponds to a combination of on / off signals corresponding to the intermediate position and the engine speed is greater than or equal to the first preset speed exceeding the idle speed When the received lever position signal corresponds to a combination of an on / off signal that is not defined in advance and the engine speed is greater than or equal to a second preset speed that is less than the idle speed It corresponds to any one of the case that the lever position corresponding to the received lever position signal and the lever position corresponding to the immediately received lever position signal are not adjacent to each other. And determining that the received lever position signal is abnormal when it is satisfied that the normal lever position signal has been received more than recently a plurality of times. The method of claim 16, The set shift stage, Lever position communication apparatus of a vehicle transmission, characterized in that the shift stage is selected from the entire shift stage (entire shift-speeds) of the transmission, by the control of the shift control actuators. The method of claim 18, The emergency control mode is set, Receiving a new lever position signal Determining whether the new lever position signal is a reverse signal; Controlling the transmission such that the transmission engages the reverse stage when the new lever position signal is a reverse stage signal. Lever position communication device for a vehicle transmission comprising a. The method of claim 19, The emergency control mode is set, Detecting the driving state of the vehicle when the new lever position signal is not a reverse signal; From the set shift stage to the shift stage closest to the target shift stage calculated in correspondence with the vehicle driving state, among preset available shift speeds that can be shifted by control of the shift control actuators alone. Controlling the transmission Lever position communication device for a vehicle transmission comprising a further.

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